Missouri Lottery officials said the ticket was sold at the Trex Mart at 17605 Highway Z, which is in Platte County.

The ticket matched all six Powerball numbers drawn last night to win half of the $587.5 million jackpot.

Powerball officials said the other winning ticket was sold in Arizona.

The winning numbers were 5-16-22-23-29 and the Powerball was 6.

The jackpot, which had been an estimated $500 million at the start of the day, Wednesday had grown to $580 million late in the evening because of strong ticket sales. Officials had estimated that there was a 75 percent chance that at least one winning ticket was sold.

There were two tickets worth $1 million that were sold. The first was sold at the Sunfresh at 2415 Northeast Vivion Road in Kansas City, and the other was sold at the Casey's General Store at 4800 South Rangeline in Joplin.

There were no $1 million tickets sold in Kansas, according to the Powerball website.